Question

prove that: (a+b) (a-b)=a²-b²​

Answer 1

To prove :

(a+b) (a-b) = a²-b²

LHS :

= (a+b) (a-b)

= a(a-b ) +b(a-b)

= a²-ab +ab-b²

= a²-b²

LHS = RHS proved ✔️

Answer 2

Step-by-step explanation:

(a+b) (a-b) = a²-b²

a+a =a² And b+ b= b²

and + - = - so a²-b²

Hence proved,(a+b) (a-b)=a²-b²